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Portacal 1000
en
1-key recall of all
commonly used
calibration points
Operating mode
change switch
On/Off Switch
7 Storage
locations for user
defined values
(9 for each mode)
• Description
The Portacal 1000 is a microprocessor based calibrator for milliamp
and voltage signals. It combines signal source and signal measuring
features for diagnostic testing of analogue current and voltage loops.
Operation
The Portacal 1000 has three basic operating modes:
• voltage source, which simulates auxiliary powered transmitters with
proportional voltage outputs;
• current source, which simulates auxiliary powered transmitters with
proportional current outputs;
• current sink mode, which simulates -wire (loop powered) transmitter
outputs.
+
+Iext
−
Operating mode indicators
Increment/decrement mode
indicators
Increment/decrement mode change
switch
Special mode select
Increment/decrement by 1 V/mA
Increment/decrement by 0.1 V/mA
Increment/decrement by 0.01 V/mA
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